Rotary tooth-brush.



MLSTOO-RMAN.

I ROTARY TOOTH BRUSH. APPLICATION FILED APR.3. 1911.

PatentedJune 18, 1918.

WITNESSES A TTOR/VEYS UNITED STATES. PATENT OFFICE. A

MAX STOORMAN', OF NEW YORK, N. Y.

no'rAnY TOOTH-BRUSH.

Specification of Letters Patent. Patented-June 1S, 1918.

Application filed April 3, 1917, Serial No. 159,429. Renewed March 2, 1918. Serial Ho. 220,106.

To all whom it may concern: I

Be it known that I, MAX STOORMAN, a citizen of Russia, and resident of the city of New York, borough of theBronx, county of Bronx, and State of New York, have invented a new and Improved Rotary Tooth- Brush, of which the following is a full, clear, and exact description.

This invention relates to toilet articles and has particular brushes.

Among the objects of the invention is to provide a tooth brush of novel design or.

construction. adapting it for superior cleansing qualities.

Another object of the invention is to provide arotary tooth brush adapted tobrush or cleanse by single operation or series of movements all of the exposed surfaces of the teeth, inside, outside and edges of the teeth of both jaws simultaneously. I

lVith the foregoing and other objects in view the invention consists in the arrangement and combination of parts hereinafter described and claimed, and while the invention is not restricted to the exact details of construction disclosed or suggestedherein, stillfor the purpose of illustrating a practical embodiment thereof reference is had to the accompanying drawings, in which like reference characters designate the same parts in the several views, and in which Figure 1 is a side elevation of a preferred form of the invention.

Fig. 2 is a vertical sectional view same. Fig. 3 1s a vertlcal transverse section on the line 33 of Fig. 1; and

Fig. 4 is a side elevation. ofra modified form of the. invention.

Referring now more particularly to the drawings I show a brush comprising two parts, namely the head 10 and the handle 11.- The construction is preferably of a rigid nature and may be made of any material of a durable and sanitary nature suitable for the purpose of. the device. j

The head 10 comprises spaced parallel disks 12 and 13, the outer faces of which may reference to tooth nected to or made integral with one of the disks and having its other end tapped at 15 into the other disk. The axis of the stem coincides with the centers of the disks.

The inner flat faces 12 and 13 of the disks are provided withbristles 16 extendtween the disks. I do not Wish to be'confined to any particular relative proportions of these parts nor to any special amount of ing toward the central plane midway be- A free space between the opposed sets of bri'stles, it being understood that in practice the inner disk 13 will be projected into the points of the teeth will be broughtintoposition to be cleansed by the radial bristles 17 carried by thestem 14. The brush head may now be reciprocated along the teeth or rotatedaround the axis of the stem 14 causing the parallel bristles 16 to operate over the teeth with a circular motion, or these two motions, rotaryand reciprocating, may be combined as may be desired. The surfaces of, all the teeth will thus be reached in a rapid and thorough manner, and the bris- Hes-especially those of the disks will cleanse all foreign inattrfrom between the teeth more thoroughly than can be done with an of the '7 I ordinary tooth ush. The handle 11 being curved outwardly in the nature .of a crank adapts the brush readily for rotatioh around the axis aforesaid as well as for reciprocating it.

The form of the improved brush shown in Fig. -1 is inall general aspects similar to that above described, the head 10' being the same. while the handle 11 is offset from the head at 11 to accommodate the operators lips or cheek between the disk 12 and the laterally projecting. turn of the handle. This form of the device is better adapted for all rotary movement 'of the brush with respectv to back teeth. The extreme end of the handle 11 ,'however, is'bent more nearly intoparallelism with the axis of the head than the other form whereby there is provided a! better rotating or crank action.

I claim: 1. In a rotary tooth brush, the combination of a pair of spaced parallel coaxial disks Hu-h having a convex outer surface, the disks having sets of bristles'extendln'g 'irom each toward the other, a stem rigldly.

" serving toYrotate "the same around the'axis BEST AvAlLABLE C OP 2. In. a rotary' tooth brush, the combinatimr'o'f'a head and a curved crank shaPed handle rigidly secured thereto and scrvlng to reciprocate or rotate the head, said head comprising a pair of SPfiCGfiCOflXlZIi members hav ng convex outer surfaces with thin edges, means extending between the mem; bers and rlgidly secured thereto, and sets of bristles se cured upon the inner surfaces.

of the coaxial niembers and-the exposed surface'of the connecting means betweenthem.

i MAX STOORMAN. 

